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package org.eclipse.viatra.solver.data.map;
public class VersionedMapStoreConfiguration {
public VersionedMapStoreConfiguration() {
}
public VersionedMapStoreConfiguration(boolean immutableWhenCommiting, boolean sharedNodeCacheInStore,
boolean sharedNodeCacheInStoreGroups) {
super();
this.immutableWhenCommiting = immutableWhenCommiting;
this.sharedNodeCacheInStore = sharedNodeCacheInStore;
this.sharedNodeCacheInStoreGroups = sharedNodeCacheInStoreGroups;
}
/**
* If true root is replaced with immutable node when committed. Frees up memory
* by releasing immutable nodes, but it may decrease performance by recreating
* immutable nodes upon changes (some evidence).
*/
private boolean immutableWhenCommiting = true;
public boolean isImmutableWhenCommiting() {
return immutableWhenCommiting;
}
/**
* If true, all subnodes are cached within a {@link VersionedMapStore}. It
* decreases the memory requirements. It may increase performance by discovering
* existing immutable copy of a node (some evidence). Additional overhead may
* decrease performance (no example found). The option permits the efficient
* implementation of version deletion.
*/
private boolean sharedNodeCacheInStore = true;
public boolean isSharedNodeCacheInStore() {
return sharedNodeCacheInStore;
}
/**
* If true, all subnodes are cached within a group of
* {@link VersionedMapStoreImpl#createSharedVersionedMapStores(int, ContinousHashProvider, Object, VersionedMapStoreConfiguration)}.
* If {@link VersionedMapStoreConfiguration#sharedNodeCacheInStore} is
* <code>false</code>, then it has currently no impact.
*/
private boolean sharedNodeCacheInStoreGroups = true;
public boolean isSharedNodeCacheInStoreGroups() {
return sharedNodeCacheInStoreGroups;
}
}
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